Improvement in goal stoves



J. L LOW. GOAL STOVVE.

No. 63,539, Patented Apr. 2, 1867.

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'JHN J. LOW, OF CLEVELAND, OHIO.

Letters Patent No. 63,539, dated April i', 1867. v

TO ALL 'll/HOM 1T MAY CONCERN:

'lio it known that JOHN J. LOW, of Cleveland, in the county of Cuyahoga, and Stute of' Ohio, have invented certain 'Improvements in Gasurniug Stoves i'or coul, peat, the.; :rnd l do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, ine-king part of this specificationi i Figure l being a central vertical section of a cylinder stove provided with my iniprovenienteY Figure 2, a horizontal section thereof, in a. plane indicated by the line x ez, iig. l.

Figure 3, a view of the outsideof oneof the upper tier ci' blocks or bricks, composing the lining of the fire-pot or tire-box. l

`Figure 4, an outside view of one of the lower tiers of blocks or bricks.

Lilie letters designate corresponding parts in all of the iigures.

My improvements relate to thelining of the tire-pot or tire-box, whereby the lininglitself is more easily and cheaply* made and put together, and more readily repaired, and by which air is supplied all round the {irepot, and introducedin numerous jets into the burning fuei on' all sides, and especially is made to mingle with the gases generated therein while in the act of ascending within and through the fire-penso that a more complete combustion is the result. '.lhe body or case A, and the Vbase 0f the stove and the ordinary parts .v

connected. therewith, may vary indefinitely, and need no special description here.

In the construction of the lining, I propose to make and use cast-iron' blocks G C and D D of suitable size end form, and similar to ire-brick linings in these and other respects, as feras desired. These blocks are to l i i l be arranged in the stove 1n tiers, and so that the successive tiers thereof shall-break joints, :is seen at z l', fig.

1.A rlhere are two forms of these blocks, as represented, the lowerones, C C, being oi the ordinary shape;

while the upper ones, D, `are of pecuiihr. form, curving inward toward the upper edge so as to contract the size of the neck of. the lining, and then iiiiring outward at the top so as to lill the wholeinterior diameter of the steve body, as seen at b Zz; These twoforlns are cest in moulds formed respectively therefor; and, in costing, they may. be corrugated or plain, and have notches p p in their edges, or holes cast or afterwards bored through them.

The advantages of the castiron;block linings, are that they can be cast at. any piace where stoves or other castings are triade; thus being suitable for ail parts ot` the country, as well where fire-bricks or soap-stone cannot easilybe procured for the purpse', as at other pieces. They are also cheap,land, when they become unfit for use, they may be sold to inelt again. Ik amy eware that ast-iron linings have before been used in the forni of staves or rings, but not'in blocks like these, arranged in tiers and breaking joints, so far as I am aware.

'These cast-iron blocks are especially valuable because ofthe convenience and cheripncss of repairing the lining,

any one block being removable andreplaceable, without interfering with the rest of the lining.

Iulthe use of these cast-iron blocks, provision must bc uiade for the great expansion of iron by lie-n nv To effect this, i mnke the bloehs Aivith lap joints at the ends, each block having an inner l:ip,f, ut one end nnfd an o utenlnp, g", at the other end, so that the adjacent blocks are united, es seen vin lig. By this means the joints tney be'quite open ieose, as indicated in the same figure, suiiiciently to allow all the expansion ever req'uiredin'the most intense heat., without injury to any port of the stove.

'.liie blocks C C-end D D are provided with a number of separate projections, d d, upon the outer surface thereof, ior tho purpose of keeping the general surface of the blocks separated from the case A of the stove, as represented, and thereby alTording 'an open spice or vspaces aLl around the lining inside of said case, to admit air from below through apertures va ct in the baise-plete B, (or through the cese A et the bottom if preferrerh) and supplying it, through holes or notchespjlin the lining, to the ignited fuelnt numerous points all around the Sommand especially affording afull supply oi' oxygen totlie generated gases as soon :is set free from the fuel,

and at point-s where the temperatureis high enough to eli'ect complete combustion. These projections may be er" vzirinble forni, but all should project to alientan equal extent in order to hold the blocks at uniform 'distances from the case; and the number may be three or more on each block, or sufiicient to hold it in the right position. liet only do 'these projections aii'ord an air space for the admission ot' air to support the combustion, but by o`er.f 1, contact'between the lining und case et only e few pointsfthe case is much bettereproteoted from the espa 2 wtense heut .of the fuel, although a. suicient heet is communicated to and radiated from tlist part of the case to enable it to do its proper shne of warming. 'The upper tier of blocks, D D, by their curved rims b b, fit

closely in the case, and close the space l-rat the top. The contracted neck thereof not onlydclects and condenses the gasses as theyverise from the ire-pot 'or chamber, but there are rows or rengcsof holes h i, through the blocks, not only at the most contmcter'part, but'ielow, as sl'iown in g. l., through which a large amount of air is admitted to complete the conlbnstion of the gases whereit is moet e'eotual. The enlarged annuler space m around this :beck holds und more freely supplies en increased amount of air for the purpose. These neck and rim blocks D D extend around-the whole inside of the stove, as well under the door or doors asiat other points. They thus protect tho'door from injury by'intense liest, to which other constructions render the doors liable. The letter-named improvements of the projections d d on the blocks, und the performed upper tier blocks are applicable to rire-brick and other linings, as well as to those of' cast iron, end I propose to use them with-sucl1 other linings when employed.

Wha/.t I claim as 'my invention, and desire to secure by Letters P'atent, s-

The perforated curved upper tier blocks D D, arranged in connection with the blocks C C, constructed es shown so es to form the air chamber l Z m, substantially as and foi-*the purposes herein specified. l

I also claim the arrangement and constructionof the whole body of 'the store lining'D C C, in connection with the apertures a or n, in the manner and for the purposes herein set forth.

' 'JOHN J. LOW.

Witnesses:

J. S. BROWN, TBosZT, PARKER, 

